They weren't very high tech at my high school our mic's where really bad and temperamental so we couldn't' touch them as the actor they where on the whole show and then the sound people where uncharged of knowing who was on when..
So like it's said before even on bway with the better mic's I'm sure while they are onstage actors aren't to touch there mic's. Also I know Edan was out sick last week so they are prob. aware of that as well and made sure her mic was down even if it isn't normally. ya know? Also once and a while oyu can hear someones mic being turnd up where there on stage.
at my school they weren't always so great at it once in the middle of crazy for you there was a random "F*CK" in the middle of a scene, an actor from the scene right before had some type of issue and waited to get back to the hall where the dressing rooms to voice it.. But even in that time they sound crew still hadn't turned down his mic...
Grace: My love for you is like this scar (points to elbow) ulgy but permanent!